| 摘要 |
An apparatus for producing a double corrugated steel tube is provided to improve quality of a product and substantially improve the entire productivity by realizing a new production line automation system in which all processes including a workpiece feeding process, a corrugating process, a cutting process and a product discharging process are connected with one another. An apparatus for producing a double corrugated steel tube comprises: uncoilers(10a,10b) disposed in front and in rear to respectively feed coil workpieces for forming an inner flat tube and an outer corrugated tube; a rolling mill(13) corrugating a steel tube and forming a lockseam on the steel tube by using multiple pairs of rolling shafts, corrugating rollers mounted on the rolling shafts, and lockseam forming rollers; three rolls(16) rolling the steel tube roundly and carrying out a lockseam operation while proceeding the steel tube in a spiral direction by using multiple pairs of guide rollers and a pair of lockseam rollers; a cutting machine(19) cutting the steel tube by using a plurality of supporting rollers and a cutter wheel; a pair of pipe supports(22) which are disposed at both sides of the cutting machine, and support both sides of the steel tube by using an arm having a plurality of supporting rollers; and a run out machine(24) receiving the cut steel tubes and discharging the cut steel tubes to one side by using a table that can be reciprocated and pivoted side to side by a cylinder according to a proceeding direction of the steel tubes.
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